P0052 Atención pronto
HO2S Heater Control Circuit High
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Descripción
This code indicates that the car's computer is detecting a voltage signal that is too high from the heater circuit of an oxygen sensor. The heater helps the O2 sensor warm up quickly to accurately monitor exhaust emissions.
Causas comunes
- Faulty oxygen sensor heater circuit
- Wiring issue to the oxygen sensor
- Problem with the oxygen sensor's electrical connector
- High voltage in the electrical system
- Issue with the car's computer (PCM/ECM)
Síntomas
- Check Engine Light is on
- Increased fuel consumption
- Poor engine performance
- Failed emissions test